Upstaged by other educational movies
Simply because it’s focus on wealthy, privileged white young men lowered the stakes. Had they never met a teacher like Keatings, all of those boys would’ve still went on to live good lives. They would have gone on to be doctors, lawyers, & businessmen.
But in movies like Stand & Deliver, Lean on Me, Dangerous Minds, and Walkout, the stakes are higher because of its focus on lower-class minorities. Without meeting Jamie Escalante, the children in Stand and Deliver would’ve went on to be criminals, welfare queens, drug dealers, or vagrants. Hence, these reduce the importance of Dead Poet Society.